Bituminous distributer.



A. FRICKER.

BITUIVIINOUS DISTRIBUTER.

APPLICATION FILED SEPLZI. 1917.

v1 ,297, 36. Patented Mal; 11,1919.

UNITED sTATEs linaTnNT OFFICE.

- ANTHoNv FRIQKER, oF cLEvELnND, oHIo.

BITUM'INoUs DISTRI'BUTE.

Specification of Letters Patent. Patented M313 11, 1919,

Appiicaton md september 27, i917. serial No. 193,447. E, TS www? E Toall whom t may @encarna Be it known'that I, ANTHONY FRIGKER, a citizenof the United States, and resident of Cleveland, ink the county ofCuyahoga and lState of Ohio,have inventednew and useful Im-provementsvin Bituminous Disy tributers, of which the following isA a description,reference being had to the accompanying drawings, which are a part ofthis specification. y f f The invention relates to machines fordistributing bituminous material,` such 'as asphalt and petroleumproducts .for vroad mak-` ing. Y Y f The inventionjis more particularlydesigned toprovidemechanism for controlling the pressure upon-thematerial in the discharge manifoldby means of'a valve infa by-passleading back to the source of supply and also for insuring'the eiicientheating of the manifold by the circulation of material through it.

The invention furtherconsists in the eral features hereinafter setforth.

In the drawings: n u

Figure 1 is a view ofthe device embodying the inventionshown'inconnection with the storage or supply tank;

Fig. 2 is a section' taken on the `line 242 of Fig. 1;

Fig. 3 is a section taken on the line 3 3 of Fig. 1. 4

In the` drawings, the numeral 4 represents the supply tank for thebituminous material. Owing to the'character of this material it has tobe heated by heaters (not shown) but which are well understood bypersons skilled in this art.

The material from` the `tank 4 passes through a pipe 5 to a pump 6, ofany suitableconstruction, from which it is delivered through a pipe 7into the central portion of what is termed the manifold 8. This manifoldis provided with a plurality of discharge nozzles y9, through which ythematerial is discharged onto the road through the operation of suitablevalves (not shown), one form yof valve being vshown in my copendingapplication Serial No. 173,255, filed June6, 1917.

In applying the material of this kind it is necessary to keep themanifold heated and also to control the delivery pressure from themanifold to suit different requirements of the work to deliver more orless material in a given period through the so ai la nozzle 9'.- Toaccomplish this purpose I have provided a bypass pipe 10 having branches11 leading to the ends 12 of the manifold and connected at its upper end18 to thetank 4. vIVith this construction it will be apparent that someof the material delivered by the pump v6 will flow under pressure fromthe pipe 7 into the manifold and through it into the branches 11 vof theby-pass pipe 10 and thence back to the supply tank 4. and that 'therewill therefore bea constant circulation of heated material through themanifold to heat the v'same and prevent any tendency of the material,

Ywhich readily congeals under ordinary temperatures, from clogging themanifold.

'i allowmaterial inthe by-pass to drain backV into the manifold andprevent clogging of the valve. The means for setting this valve comprisea lever 18 having a slot 19 at one end in which a pin 2O secured to thestem 16 is mounted and having a ball shaped portion 21 intermediate itsends seated in a ball casing 22 formed in the pipe 10 and a member 28 sothat the lever 18 may be swung vertically to open and close the valve.The lever 18 also has a curved portion 24 provided with teeth 25 on itsunder side which are adapted to be engaged by a setting member 26 havingteeth 27 and a pointer 28 and slidably mounted on the free end of a rod29 pivoted at its lower end to the pipe 10, the member 26 being held inengagement with the lever 18 by a coiled spring 30 rmounted on the rodand bearing upon the member 26 to lpress its teeth 27 into engagementwith the teeth 25 on the lever 18. f The portion 24 of the lever isprovided with a scale 31 representing pressures. With this constructionwhen the member 26 is set so the pointer 28 registers with the scaledesignation 5 a pressure of ve pounds per square inch will be maintainedin thepipe 10 and the valve will be opened a predetermined distanceWhile the pressure in the manifold will be such as to force the materialthrough the nozzles 9 at best efficiency. las the member E26 is moved soas to bring the pointer 2S from the designation 5 to the designatienV 2Othe Valve is opened to a greater extent and the pressure in the by-passpipe l0 increased. While the pressure in the manifold is decreased witha resulting decrease in the rate of flow of material from the nozzles 9.Thus the valve serves to control the pressure of the material in themanifold by decreasing, the pressure in the ley-pass pipe 10. However,under Worring conditions the valve is always open to a greater or lesseX- tent, as desired, so that some material Will flow through themanifold alud return to the tank and thus keep the manifold heated sothat the material will not clog the nozzles 9.

The invention thus exemplifies a device for controlling` the pressureupon the material in the manifold to regulate the discharge and forinsuring` efficient heating of the manifold by the circulation ofmaterial through it.

l am aware that the details of construction herein shown and describedare subject to some modification and cha-nge but such changes as comeWithin the scope. of the appended claims l deem to be Within the spiritof my invention.

TWhat I claim as my invention is:

l. ln a bituminous distributer, the combination, with the supply tanlythereof, of a discharge manifold provided with outlet l pipingconnectingsaid tank with the central portion. of the manifold, and a by-pass pipecomniunicating with the supplj,T tank and having branches leading to theends of the manifold.

2. ln a bituminous distributer, the combination with the supply tankthereof, of a discharge manifold, means for introducing material fromthe tank into the intermediate portion of the manifold and forconducting the material frcii the ends of the manifold back to thesupply tank.

3. ln a bituminous distributer, the combination, with the suppljT tankthereof, of a discharge manifold provided with outlets, piping'rconnecting` saidmanifold with said tank includinga pump for deliveringmaterial from the tank to the manifold under pressure, a by-pass leadingfrom the manifold to the tank, and a Vvalve in the by-pass forregulating the pressure of the material Within the manifold, said valvehaving drainage openings therein.

4. ln a bituminous distributer, the combination, With the suppl)T tank,of a discharge manifold provided with outlets,.means for delivering thematerial from the tank to the manifold under pressure, a by-pass leadingfrom the manifold to the tank, a valve in said 1lay-pass for regulatinothe pressure of the material Within the manifold, and means forpermitting' drainage of the material from the valve.

ln testimony whereof, l affix my signature.

ANTHONY FRICKER.

Copies of this patent may be obtained fer ve cents each, by addressingthe Commssoner'of Patents, Washington, E. C.

